CN113804520B - Automatic manufacturing device for thick oil reservoir simulated sand filling model - Google Patents
Automatic manufacturing device for thick oil reservoir simulated sand filling model Download PDFInfo
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- CN113804520B CN113804520B CN202010546182.8A CN202010546182A CN113804520B CN 113804520 B CN113804520 B CN 113804520B CN 202010546182 A CN202010546182 A CN 202010546182A CN 113804520 B CN113804520 B CN 113804520B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000004576 sand Substances 0.000 title claims description 51
- 238000005056 compaction Methods 0.000 claims abstract description 28
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000004088 simulation Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 3
- 238000005429 filling process Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 9
- 230000000704 physical effect Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 38
- 239000003921 oil Substances 0.000 description 34
- 239000011435 rock Substances 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000003027 oil sand Substances 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
A thick oil reservoir simulated sand-filling model manufacturing device comprises an automatic rotation control system; the automatic rotation control system comprises a base and a rotary table arranged in the base; the rotary table is connected with a motor which is connected with the computer; the pressure control system comprises an air compressor, a gas pressure control valve, a pressure cylinder and a fixing frame, wherein the fixing frame is supported on the base, the model pipe knocking compaction system comprises a rammer, a compression rod and a linkage frame, and the linkage frame is supported on the base. The invention has simple operation and high automation degree, and does not need manual operation. And compared with the stratum coring physical property parameter test result, the porosity and permeability error of the manufactured tubular model is less than 5%. The absolute difference between the porosity and the permeability of the two parallel tubular models is less than 5%.
Description
Technical Field
The invention relates to the technical field of reservoir rock physical simulation, in particular to an automatic manufacturing device of a thick oil reservoir simulated sand filling model, which is used for simulating reservoir rock physical properties by artificial sand filling and researching an oil-water flow state and a seepage rule of simulated stratum conditions.
Background
The thick oil scientific definition is crude oil with viscosity less than 50mPas or viscosity more than 100 mPas after degassing under the condition of an oil layer. The cause of the thick oil is very complex, and the biggest difference from common crude oil is the degree of biological degradation, and the higher the degradation degree is, the easier the thick oil is formed. In foreign countries, thick oil is also called heavy oil, except that it contains oil sands.
The API gravity is a recognized petroleum specific gravity index adopted by the American Petroleum institute, and can roughly measure the quality of oil products. The crude oil can be classified into light, medium, heavy and overweight 4 types according to the API gravity index.
The characteristics of the thick oil in China are slightly different from those of the international thick oil, so that different division standards are adopted in China, and the thick oil is divided into 3 types of common thick oil, extra thick oil and super thick oil. The thickened oil in China has low asphaltene content, so the relative density is low; the gum content is high, and the viscosity of the thick oil is relatively high.
The world thick oil resources are very rich, and the thick oil, the super thick oil, the oil sand and the asphalt account for about 70 percent of the total amount of the global petroleum resources. The global heavy oil has a geological reserve of about 8150 hundred million tons, and the maximum is Venezuela, which has 48% of the total world heavy oil; secondly, canada, accounting for 32 percent of the total amount; next are russia, united states and china. Thus, the Chinese thick oil exploitation becomes a very important task in the energy industry of China.
Simulation is a work of great importance in advance in the recovery of thick oil. In the indoor physical simulation experiment in the petroleum industry, the molded columnar rock core is difficult to obtain due to the influence of the rock looseness degree of the thick oil reservoir. Meanwhile, the full-diameter core obtained by drilling is only 10cm, and the requirements of chemical flooding and thermal recovery development simulation (the length is more than 15 cm) on the length of the core cannot be met. The cleaned and prepared oil sand or quartz sand is required to be filled into a tubular model manually. However, when the single model pipe is manufactured in the mode, the method mainly depends on the experience of an operator, and no standardized operation rules exist; the sand filling model of each filling has larger difference, so that the porosity and the permeability are not uniform. In contrast, in quantitative comparison tests, it is often necessary to create parallel models with a higher approximation of porosity and permeability. The existing manufacturing method cannot meet the approximate requirements.
Disclosure of Invention
Therefore, the invention discloses an automatic manufacturing device for a thick oil reservoir simulated sand filling model. The system is simple and convenient to operate, has high testing precision, and has important application value in the aspects of simulating the rock physical property of a reservoir by manual sand filling and researching the oil-water flowing state and seepage rule of simulated stratum conditions. The invention has the following beneficial effects:
1. According to the thick oil reservoir simulated sand filling model automatic manufacturing device, two pipe model placing stations are added, and the sand filling amount and knocking times of two model pipes are identical each time. The manufacturing process of the two model pipes is ensured to be completely consistent. The method eliminates the difference of the permeability and the porosity of the model caused by the difference of the sand filling amount of the model pipe and the knocking times of the model.
2. The automatic manufacturing device of the thick oil reservoir simulated sand filling model adopts the pressing rod to simultaneously pressurize sand filling in two tubular models on the station, and adopts the pressure control system to control the pressing pressure of the pressing rod, thereby ensuring that the pressurizing pressure of two model pipes is identical every time. The difference of permeability and porosity caused by different pressing pressures in the process of manufacturing different model pipes is eliminated.
3. According to the thick oil reservoir simulated sand filling model automatic manufacturing device, by adding the model pipe automatic rotation function, each direction of each model pipe can be guaranteed to be knocked; meanwhile, the side knocking frequency control function is increased, so that sand filling is more uniform.
4. The working position size of the model pipe can be changed. Tubular forms of 2.5cm and 3.8cm diameter can be pressed.
The aim of the invention can be achieved by the following technical measures: the device comprises an automatic rotation control system; a pressure control system; the model pipe knocks the compaction system. The automatic rotation control system comprises a computer control, a motor, a linkage belt, a linkage rod and a model pipe rotating base; the pressure control system comprises a pneumatic cylinder, a pressure gauge, a gas pressure control valve and an air compressor; the model pipe knocking compaction system comprises a rammer, a compression bar, a fixing frame and a bracket.
The aim of the invention can also be achieved by the following technical measures: an automatic rotation control system of an automatic manufacturing device of a thick oil reservoir simulated sand filling model comprises a computer control, a motor, a linkage belt, a linkage rod and a model pipe rotating base. The rotational speed of the model tube is controlled by a computer. Ensuring that every angle of the model tube is knocked. The motor powers the rotation of the modeling tube. The linkage belt transmits motor power to the linkage rod, and the linkage rod enables the model pipe rotating base to rotate at a constant speed through the gear. The device is provided with two model tube placing rotary bases. The sand filling process of two sand filling pipes is carried out simultaneously at one time, so that the two manufacturing processes are ensured to be identical. The working position size of the model pipe can be changed. Tubular forms of 2.5cm and 3.8cm diameter can be pressed separately.
The pressure control system of the thick oil reservoir simulated sand filling model automatic manufacturing device can realize accurate control of sand filling compaction pressure. The air compressor generates a continuous compressed air compaction pressure. The compacting speed of the compressed air is faster than the compacting speed of the liquid pressure. The gas pressure control valve accurately outputs the pressing pressure of sand filling; the pressing pressure is used for simultaneously pressing sand filled in two tubular models on the station through a pressing rod. When the pressure in the pneumatic cylinder reaches the set pressure of the gas pressure control valve, the gas pressure control valve instantly closes the gas output; the pressure gauge detects pressure changes in the pneumatic cylinder. In the sand filling compaction process, the pressure in the pneumatic cylinder can continuously drop, and when the pressure drops to be more than 0.1MPa, the gas pressure control valve can be opened again to enable compressed air to enter the pneumatic cylinder again, and the compaction pressure set by the gas pressure control valve is reached. And finishing one compaction process until the compaction pressure change is less than 0.1 MPa. The whole process ensures accurate control of compaction pressure. The method eliminates the uneven sand filling model caused by different compaction pressure each time.
The model knocking compaction system of the thick oil reservoir simulation sand filling model automatic manufacturing device can knock the vibration model pipe in the sand filling compaction process. And placing the sand filling pipe on a station, and giving constant pressure to the sand filling through a compression bar. The automatic rotation control system is utilized to rotate the model pipe, and the rammer is utilized to knock and shake the model pipe. Eliminating the interface generated between the two sand filling processes. Through 360 degrees rotation knocks to the model pipe, eliminated when pouring sand into the model pipe, the inside sand of model pipe that causes one survey more one side less phenomenon, improved the homogeneity degree of filling sand at every turn.
The specific technical scheme of the invention is as follows:
A thick oil reservoir simulated sand-filling model manufacturing device comprises an automatic rotation control system; the automatic rotation control system comprises a base and a rotary table arranged in the base; the rotary table is connected with a motor, and the motor is connected with a computer; the pressure control system comprises an air compressor, a gas pressure control valve, a pressure cylinder and a fixing frame, wherein the fixing frame is supported on the base, the model pipe knocking compaction system comprises a rammer, a pressure lever and a linkage frame, and the linkage frame is supported on the base.
Preferably, the pressure control system and the model pipe tapping compaction system are connected to the computer.
Preferably, the rotary seat further comprises a model pipe, and the model pipe is arranged on the rotary seat.
Preferably, the mount has a plurality of struts.
Preferably, the fixing frame is provided with 5 struts.
Preferably, the linkage frame is arranged in the fixing frame.
The invention has simple operation and high automation degree, and does not need manual operation. And compared with the stratum coring physical property parameter test result, the porosity and permeability error of the manufactured tubular model is less than 5%. The absolute difference between the porosity and the permeability of the two parallel tubular models is less than 5%.
Drawings
FIG. 1 is a schematic structural diagram of an automatic manufacturing device for a thick oil reservoir simulated sand filling model.
The reference numerals are as follows:
1-a base; 11-a rotary table; 2-fixing frames; 3-a linkage frame; 4-ramming; 21-an electric motor; 31-an air compressor; 32-a pressure cylinder; 33-a compression bar; 34-an air pressure regulating control valve; 35-pressure gauge.
Detailed Description
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.
Referring to fig. 1, the invention relates to an automatic manufacturing device for a thick oil reservoir simulated sand filling model. The device comprises an automatic rotation control system; a pressure control system and a model pipe knocking compaction system. The automatic rotation control system comprises a computer, a motor, a linkage belt, a linkage rod, a rotary table and a base; the motor controls the rotating speed of the rotating table through the linkage belt, so that the rotating speed of a model pipe on the rotating table is controlled, and the pressure control system comprises a pneumatic cylinder, a pressure gauge, a gas pressure control valve and an air compressor and provides the filling pressure of the model; the model pipe knocking compaction system comprises a rammer, a compression bar, a fixing frame and a support, wherein the rammer realizes the simulation of filling alternating pressure, the compression bar realizes the simulation of filling continuous pressure, the rammer and the compression bar realize double pressure simulation, the power of the rammer and the compression bar is provided by an air compressor of a pressure control system, the coordination of double pressure is realized by a computer, namely, the pressure of the compression bar and the frequency of the rammer are respectively and independently regulated according to the simulation requirement, the relation between the pressure and the frequency of the rammer is established, the fixing frame is provided with 5 support columns, 4 support columns are respectively arranged at four corners of the fixing frame, and 1 inclination angle is arranged between the two support columns, so that the rigidity of the fixing frame is increased. The motor, the air compressor, the compression bar and the running part of the rammer are all connected with the computer, and the computer realizes unified control and overall coordination.
The automatic manufacturing device of the thick oil reservoir simulated sand filling model comprises the following steps when in operation:
Step one: according to the diameter size (2.5 cm or 3.8 cm) of the fabricated model tube, a rotary table is selected, and the rotary table is placed on the base. The model tube was placed on a rotating table.
Step two: and setting the pressure of the gas pressure control valve through automatic control software according to the permeability of the sand filling model to be manufactured. The air compressor is turned on.
Step three: the motor switch is turned on, and the rotating speed of the rotating platform and the knocking times of the rammer are set through automatic control software.
Step four: 20g of the prepared oil sand or quartz sand were weighed with a balance. Pouring the weighed sand into a model pipe on a rotary table.
Step five: and starting the pressurization of the sand filling of the model pipe through automatic control software.
Step six: and opening the rotation and knocking oscillation of the model pipe through automatic control software.
Step seven: after the pressing pressure is stable, the pressure control system and the model rotation control system are closed through automatic control software.
Step eight: repeating the steps four to seven until the mould tube is full.
Parallel model making experiments were performed using the present invention patent. The physical parameters of the two parallel models were compared and compared with the physical parameters of the reservoir, and the specific results are shown in table 1.
Table 1 comparison of model parameters and reservoir Property parameters
The above description is only a few preferred embodiments of the present invention, and flexible modifications are possible, as well as modifications and equivalents thereof, by anyone skilled in the art using the above-described embodiments. Therefore, any simple modification or equivalent made in accordance with the embodiments of the present invention falls within the scope of the present invention as claimed.
Claims (4)
1. The utility model provides a viscous crude reservoir simulation sand filling model making devices which characterized in that: comprises an automatic rotation control system; the automatic rotation control system comprises a base and a rotary table arranged in the base; the rotary table is connected with a motor, and the motor is connected with a computer; the pressure control system comprises an air compressor, a gas pressure control valve, a pressure cylinder and a fixed frame, wherein the fixed frame is supported on a base, the model pipe knocking compaction system comprises a rammer, a compression rod and a linkage frame, and the linkage frame is supported on the base;
The automatic rotation control system comprises a computer control, a motor, a linkage belt, a linkage rod and a model pipe rotating base; controlling the rotation speed of the model pipe through a computer, and ensuring that each angle of the model pipe is knocked; the motor provides power for the rotation of the model pipe; the motor power is transmitted to the linkage rod by the linkage belt, and the linkage rod enables the model pipe rotating base to rotate at a constant speed through the gear; the device is provided with two model pipe placing rotary bases, sand filling processes of two sand filling pipes are simultaneously carried out at one time, the two manufacturing processes are guaranteed to be identical, and the working position size of the model pipes can be changed;
The pressure control system realizes accurate control of sand filling compaction pressure; the air compressor generates continuous compressed air compaction pressure, and the air pressure control valve accurately outputs the compaction pressure of sand filling; the pressing pressure is used for simultaneously pressing sand filled in two tubular models on the station through a pressing rod; when the pressure in the pressure cylinder reaches the set pressure of the gas pressure control valve, the gas pressure control valve instantly closes the gas output; the pressure gauge detects the pressure change in the pressure cylinder; in the sand filling compaction process, the pressure in the pressure cylinder continuously drops, when the pressure drops to be more than 0.1MPa, the gas pressure control valve is opened again to enable compressed air to enter the pressure cylinder again, the compaction pressure set by the gas pressure control valve is reached, and the one-time compaction process is completed until the change of the compaction pressure is less than 0.1 MPa;
The model pipe knocking compaction system is used for knocking and vibrating the model pipe in the sand filling compaction process; the sand filling pipe is placed on a station, sand filling constant pressure is given through a compression bar, the automatic rotation control system is utilized to rotate the model pipe, and the rammer is utilized to perform 360-degree rotation knocking vibration on the model pipe, so that the sand filling uniformity of each time is improved;
The pressure control system and the model pipe knocking compaction system are connected with the computer.
2. The thick oil reservoir simulated sand filling model making device as claimed in claim 1, wherein: the fixing frame is provided with a plurality of supporting columns.
3. The thick oil reservoir simulated sand filling model making device as claimed in claim 2, wherein: the fixing frame is provided with 5 struts.
4. A thick oil reservoir simulated sand filling model making apparatus as claimed in claim 3, wherein: the linkage frame is arranged inside the fixing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010546182.8A CN113804520B (en) | 2020-06-15 | 2020-06-15 | Automatic manufacturing device for thick oil reservoir simulated sand filling model |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010546182.8A CN113804520B (en) | 2020-06-15 | 2020-06-15 | Automatic manufacturing device for thick oil reservoir simulated sand filling model |
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| CN113804520A CN113804520A (en) | 2021-12-17 |
| CN113804520B true CN113804520B (en) | 2024-05-31 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437589A (en) * | 2015-12-12 | 2016-03-30 | 启东春鼎机械有限公司 | Automatic compaction device of sand filling model pipe |
| CN105464653A (en) * | 2015-12-11 | 2016-04-06 | 启东九鑫玩具有限公司 | Sand-packed model pipe full-automatic compacting device |
| CN205343873U (en) * | 2015-12-12 | 2016-06-29 | 启东春鼎机械有限公司 | Automatic compaction device of sandpack column pipe |
| CN205477587U (en) * | 2016-03-29 | 2016-08-17 | 西安石油大学 | Full -automatic electromagnetism sandpack column pipe |
| CN109296362A (en) * | 2018-08-31 | 2019-02-01 | 中国石油天然气股份有限公司 | Rotate sand-filling apparatus, the rotation back-up sand system and method applied to sandpack column |
| CN109727521A (en) * | 2019-02-19 | 2019-05-07 | 西安石油大学 | A kind of filling of sandpack column pipe and compacting apparatus and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9020793B2 (en) * | 2005-12-22 | 2015-04-28 | Chevron U.S.A. Inc. | Method, system and program storage device for reservoir simulation utilizing heavy oil solution gas drive |
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2020
- 2020-06-15 CN CN202010546182.8A patent/CN113804520B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464653A (en) * | 2015-12-11 | 2016-04-06 | 启东九鑫玩具有限公司 | Sand-packed model pipe full-automatic compacting device |
| CN105437589A (en) * | 2015-12-12 | 2016-03-30 | 启东春鼎机械有限公司 | Automatic compaction device of sand filling model pipe |
| CN205343873U (en) * | 2015-12-12 | 2016-06-29 | 启东春鼎机械有限公司 | Automatic compaction device of sandpack column pipe |
| CN205477587U (en) * | 2016-03-29 | 2016-08-17 | 西安石油大学 | Full -automatic electromagnetism sandpack column pipe |
| CN109296362A (en) * | 2018-08-31 | 2019-02-01 | 中国石油天然气股份有限公司 | Rotate sand-filling apparatus, the rotation back-up sand system and method applied to sandpack column |
| CN109727521A (en) * | 2019-02-19 | 2019-05-07 | 西安石油大学 | A kind of filling of sandpack column pipe and compacting apparatus and method |
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| CN113804520A (en) | 2021-12-17 |
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